N25.8
N25.8 — Other disorders resulting from impaired renal tubular function
Non-billable headerICD-10-CM
N25.8 is a non-billable header ICD-10-CM code for other disorders resulting from impaired renal tubular function. It cannot be billed on its own: choose one of the more specific child codes below.
Other codes that can never be billed with N25.8
These codes carry an Excludes1 note pointing at N25.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading N25.8 alone.
- E21.1Secondary hyperparathyroidism, not elsewhere classified
Risk adjustment
N25.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead N25.8
2 child codes. Green means billable.
Related codes at this level
Codes that share N25. If N25.8 is not quite right, the correct code is usually one of these.
Questions about N25.8
- Is N25.8 a billable ICD-10-CM code?
- No. N25.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does N25.8 sit in the tabular list?
- Diseases of the genitourinary system (N00-N99), in the block Other disorders of kidney and ureter (N25-N29).